city of palm and the capitol damascas. military said to be massing troop along the eastern outskirts for possible counter offensive. >> in yemen security official who worked for the u.s. embassy was gunned down on his way to work. officials in yemen say the unidentified man was assassinated by a gun man riding a motorcycle in the capitol here. victim worked for the embassy for nearly 20 years. officials are saying the attack bare the hall mark of al qaeda. >>> tonight obama administration is going to extraordinary lengths to target a street gang. administration has listed ms 13 of central american street gang as international criminal organization. that designation allows federal agents to seize assets associated with the gang. the gang is believed to have as many as 10,000 members across the united states. in san francisco the gang is based at 20th and mission. ms 13 is considered one of the world most dangerous and violent gangs. it is known for being especially violent and responsible for many, many murders. >>> well, m